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Marquise|Lab Grown|IGI

3.80ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG812633618

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812633618

Diamond specifications and retailer prices

From $868 NZD
$488 USD
As of November 3, 2026
Save $5,462 NZD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,330 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.8ct lab-grown marquise diamond

This 3.8ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812633618 or 812633618. Listed at 4 retailers as of October 31, 2026, with prices from $868 to $6,330, a $5,462 spread on the same certified stone. Brilliant Earth lists it at $6,330. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.80
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812633618
Dimensions17.12 × 8.19 × 4.91 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.12 mm8.19 mm3.80 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812633618
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $6,330 NZD|Low: $857 NZD|High: $6,525 NZD|Avg: $2,706 NZD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 5$862 NZD
Retailer 3$868 NZD
Retailer 7$1,334 NZD
Retailer 2$1,641 NZD
Retailer 8$1,794 NZD
Retailer 9$2,196 NZD
Retailer 6$2,357 NZD
Retailer 10$3,485 NZD
Retailer 4$4,872 NZD
Brilliant Earth$6,330 NZD

37 data points across 10 retailers

4 retailers$868 NZD to $6,330 NZD

A
Cheapest Retailer
-
$868 NZD
$488 USD
Final sale: no returns
A
Retailer 2
-
$1,641 NZD
£727 GBP
View
Retailer 3
-
$4,872 NZD
$2,740 USD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
20331184A · Oct 31
$6,330 NZD
$3,560 USD
View
3 more retailers have this diamond
Prices start from $868 NZDSave up to $5,462 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.80ct Marquise
$868 NZD